Base



April 16, 1929. c. J., TRAVERS BASE Filed Aug. 31, 1927 Patented Apr. 16, 1929.

'UNITED STATES PATENT OFFICE.

CHARLES T; TRAVERS, OF PORT WASHINGTON, WISCONSIN, ASSIGNOR T GILSON MANUFACTURING COMPANY, OF PORT WASHINGTON, WISCONSIN.

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Application filed August 31,1927. Serial Na. 216,691

This invention rel-ates to bases. Objects of this invention are to provide a novel form of base, such for instance as a base for an article of furniture, or, in fact, '5 any device that has to be supported, such as a table, chair, stand, or other article, and

which may be wheeled, if desired, and which is formed wholly of metal and which is so made that thin sheet metal may be employed and may be formed in a tubular structure to secure the maximum lightness and strength.

Further objects are to provide a novel form of base which is made of sheet metal and metal tubing, and which nevertheless is so formed that it may be very readily constructed by ordinary machine shop methods.

Further objects are to provide a base which is so constructed that it may receive a spindle or similar member of a swivel chair, pedestah, or a table, to forma complete base, or made high enough to receive a spider to make a complete table base or likearticle, and which may also receive rollers, and which is extremely rigid and will stand anexcessive amount of abuse without distortion.

Embodiments of the invention are shown in the accompanying drawings in which: Figure 1 is a sectional view approximately on the line 11 of Figure 2; I

Figure 2 is a fragmentary plan view of the structure shown in Figure 1 with parts broken away;

Figure is a sectional view on the 3 of Figure 2;

Figure 4 is a sectional view on the line 44 of Figure 1;

Figure 5 is a fragmentary view of a modified form of construction.

Referring to Figures 1 to 4, it will be seen that the base comprises a central sleeve 1 which may be formed of cast metal, if desired, and which is provided with a central aperture 2, and preferably with a recessed upper portion 3. It is provided with a small outwardly projecting flange 4 at its upper end and is provided with a downwardly extending annular flange 5 at its lower end, such downwardly extending flange also carrying a small laterally projecting flange 6.

In making this base, the central sleeve is slipped into the tubular, member 7, as shown line 8 in Figure 1, and it is to be noted that the member 7 is preferably formed of seamless steel tubing. Its upper end is slightly thinned, as indicated by the reference char acter 8, to provide a shoulder against which the flange 4 rests in assembling the device. The upper end of the cylinder 7 or tube, is turned over to lock the flange 4 in place and consequently to definitely hold the central sleeve 1 in correct relative position. Thereafter, a washer 9 of metal is slipped over the flange 5 and against the flange 6. The bottom edge of the tube 7 is turned inwardly, as indicated at 10, to thus lock the bottom washer 9 in place.

Prior to the assembling of the central sleeve and the tubular shell, a plurality of tubular legs 11 are formed of pressed sheet metal. The sheet metal is folded into a closed rectangular cross sectional contour with overlappingbottom edges. These bottom edges are secured by rivets 12-. The upper portion of the legs 11 are provided with outwardly turned flanges 13 which are secured by rivets 14 to the shell or tube 7.'

in Figures 1 and 2, and the flaps 16 are bent down and folded around such members. The members 18 are then brazed to the flaps to retain them in position.

The members 18 provide means for the reception of the spindles of casters or for the reception of any suitable type of feet, and it is to be understood that the expression feet receiving members is intended to include casters, padded feet, or any other suitable type of feet, as desired.

If desired, the construction may be slightly modified by using a washer at the upper portion in place of the flange integral with the sleeve 1. As shown in Figure 5, the sleeve 1' may be provided with an upper flange 19 andwith a'laterally extending flange 20 for positioning an upper washer 21. Further, the shell 7 may be providedwith a beaded portion 22 for positioning the washer and may have its upper edge folded over as indicated at 23, to lock the washer i terial.

1n place. Under these conditions, the metal of the shell 7 need not be thinned out at its upper end but may be of the same thickness throughout. I

' In this connection, it is to be noted that although it is preferable to thin the metal for the upper edge of the shell 7 for the construction shown in Figure 1, that nevertheless it is within the scope of this invention [to use metalpf the same thickness for'the entire shell 7, although this does not provide for the ease of positioning and assembling as well as the construction first described.

It will be seen that-'a very light, strong,

and rigid all-metal base has been provided Although the invention has been described in considerable detail, .Buch description is -intendedas illustrative-rather than limiting as the invention may be variously embodied and as the scope of such-invention is to be determined as claimed.

.1 claim:

1.v A base comprising a central spindle receiving sleeve, a cylindrical metal shell surrounding and supporting said sleeve, and a plurality of tubular downwardly extending arms formed of pressed sheet metal secured to and radiating from said shell, said arms being an' elongated rectanglein cross section with their longer sides extending vertically, and vertically disposed tubular members secured to the lower ends of the arms.

.2. A base comprisin a central spindle receiving sleeve, a cylin rical metal shell surrounding and supporting said sleeve, and a plurality of tubular downwardly extending a v at its upper and lower ends,

is to be noted that the tubular meaaae arms formed of pressed sheet metal secured to and radiatingfrom said shell, said arms being an elongated rectangle in cross section with their longer sides extendinr'vertically, and having overlapping lower o 1 es riveted together, i

3, A base comprising a spindle receiving sleeve having a laterally. projecting portion a metal shell surrounding said sleeve and having its upper and lower edges-turned over said laterally projecting portions of said sleeve, and a pluralitypi rectangular sheet metal arms radiating from an secured to said shell.

. 4. A base comprising a spindle receiving sleeve having a laterally projecting, portion at its upper andlower ends, a metal shell surrounding said sleeve and having its upper and lower edges turned over said laterally projecting portions of said sleeve, and a plurality of rectan ular sheet metal arms radiating from and secured to said shell, said arms terminating in downwardly opening tubular members;

5.'A base comprising a central spindle receiving, sleeve, a cylindrical shell surrounding said sleeve an supporting saidsleeve, a, plurality of sheet metal arms radiating from and secured to saidshell, said arms being of rectangular cross section and having their outer ends notched to provide flaps, cylindrical members inserted in -said outer ends, the-flaps of said arms being wrapped about said cylindrical members and secured thereto. f v 6. A base comprising a metal shell, a plurality of tubular vdownwardly extending arms formed of pressed sheet metal radiating from said shell, said arms being an elongated rectangle in cross section with their longer sides extending vertically, and vertically disposed tubular members secured to the lower ends of the arms.

In testimony that I claim the foregoing I have hereunto set my hand at Port Washington, in the county of'Ozaukee and State of I Wisconsin.

CHARLES J. TRAVERS. 

